Compilare: user.cpp: In function ‘void read(int&)’: user.cpp:37:23: warning: suggest parentheses around comparison in operand of ‘|’ [-Wparentheses] while(inBuffer[p] < 0x30 | inBuffer[p] > 0x39) ^ user.cpp:42:23: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses] while(inBuffer[p] > 0x2F & inBuffer[p] < 0x3A) ^ user.cpp: In function ‘int main()’: user.cpp:83:16: warning: unused variable ‘j’ [-Wunused-variable] int i, j, a, b, c; ^ user.cpp: At global scope: user.cpp:52:37: warning: always_inline function might not be inlinable [-Wattributes] __attribute__((always_inline)) void write(int x) ^ user.cpp:31:37: warning: always_inline function might not be inlinable [-Wattributes] __attribute__((always_inline)) void read(int &num) ^ user.cpp: In function ‘void read(int&)’: user.cpp:39:24: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] ++p != 0x30D40 || (fread(inBuffer, 0x1, 0x30D40, stdin), p = 0x0); ^ user.cpp:46:24: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] ++p != 0x30D40 || (fread(inBuffer, 0x1, 0x30D40, stdin), p = 0x0); ^ user.cpp: In function ‘int main()’: user.cpp:76:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("dijkstra.in", "r", stdin); ^ user.cpp:77:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("dijkstra.out", "w", stdout); ^